REMEMBER ALLAH WHEN YOU ARE IN A CROWD H 846 "Those who leave a gathering in which there has been no remembrance of Allah, leave it like the corpse of a donkey, and suffer remorse." R 846 Abu Daud with a chain up to Abu Hurairah who related that the Prophet, praise and peace be upon him, said this.
834- وعن أَبي هريرة رضي الله عنه ، قَالَ : قَالَ رسول الله صلى الله عليه وآله وسلم : "مَا مِنْ قَوْمٍ يَقُومُونَ مِنْ مَجْلِسٍ لاَ يَذْكُرُونَ الله تَعَالَى فِيهِ ، إِلاَّ قَامُوا عَنْ مِثْل جِيفَةِ حِمَارٍ ، وَكَانَ لَهُمْ حَسْرَةٌ" رواه أَبُو داود بإسنادٍ صحيح .